function Ajax(){
	try{return new XMLHttpRequest();}catch(e){
	try{return new ActiveXObject("Msxml2.XMLHTTP");}catch(e){
	return new ActiveXObject("Microsoft.XMLHTTP");}}	
	return null;
}

function enviaAmigo(){
	var ajax  = Ajax();
	var elems = document.getElementsByTagName('form')[0].elements;
	var img   = document.getElementById('divExibicao').getElementsByTagName('img')[0].src;
	var param = '';
	if(!vEnviaAmigo(document.getElementsByTagName('form')[0])){
		return false;	
	}
	ajax.onreadystatechange=function(){
		if(ajax.readyState==4){
			document.getElementById('divEnviaParaAmigo').innerHTML=ajax.responseText;
		}	
	}
	for(i=0;i<elems.length;i++)
		param+=elems[i].name+"="+escape(elems[i].value)+"&";
	param+="img="+escape(img);
	
	ajax.open('GET','request/enviaAmigo.php?'+param,true);
	ajax.send(null);
}

function sendContato(f){
	var ajax = new Ajax();
	var param = "";
	if(!vContato(f))
		return false;
	for(i=0;i<f.elements.length;i++)
		if(f.elements[i].type!="checkbox" || (f.elements[i].type=="checkbox" && f.elements[i].checked))
			param+=f.elements[i].name+'='+escape(f.elements[i].value)+'&';
	ajax.open("POST","sendContato.php",false);
	ajax.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	ajax.send(param);
	if(ajax.responseText=="true")
		showError('Mensagem enviada com sucesso');
	else
		showError('Falha ao enviar a mensagem, tente novamente mais tarde');
	f.reset();
	return false;
}